Persistence of the extinction of fear memory requires late-phase cAMP/PKA signaling in the infralimbic cortex.
Neurobiology of Learning and Memory(2020)
Abstract
•Phosphodiesterase-4 inhibition 3 h after extinction improved the persistence of extinction.•Infralimbic cortex activity is associated with the effect of ROF on extinction.•cAMP-PKA activity in the IL is involved in the effect of ROF.•ROF treatment in the late phase of extinction consolidation enhances BDNF in IL.
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Key words
Fear conditioning,Phosphodiesterase,PTSD,BDNF,Roflumilast
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